# Blockjaw vs Space Crash Simulator

The clearest difference is price: Space Crash Simulator at Free against Blockjaw's $0.99. Space Crash Simulator also leads on update cadence (every 5 days vs every 6 weeks) and ratings volume (608 vs 2). Blockjaw's advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 1). On device support and iOS requirement there is nothing between them.

Space Crash Simulator is free to download; Blockjaw costs $0.99 up front. Space Crash Simulator sells 1 one-off in-app purchase. Blockjaw asks for nothing beyond the download.

Blockjaw holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Space Crash Simulator has 608 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Blockjaw's written reviews are positive against 82% of Space Crash Simulator's.

Blockjaw ships an update every 6 weeks, Space Crash Simulator every 5 days. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Blockjaw | Space Crash Simulator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blockjaw/id6468897122/reviews)** | [4.5 (608 ratings)](https://appshunter.io/ios/app/space-crash-simulator/id6742357679/reviews) |
| Number of ratings | 2 | **608** |
| Positive reviews | **100.0% of reviews** | 81.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 254 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [J Crowley](https://appshunter.io/developer/1002254433) | [WPC](https://appshunter.io/developer/1681830786) |

## What reviewers say

### Blockjaw

[App page](https://appshunter.io/ios/app/blockjaw/id6468897122)

A unique puzzle game where you control falling blocks using facial expressions. Move pieces by shifting your mouth, rotate by blinking, and increase speed by opening your mouth. Fill rows to clear them in this innovative AR experience.

**Highlights:** Control blocks with facial expressions, Move pieces with mouth shifts, Rotate pieces by blinking, Increase fall speed by opening mouth, Clear rows to score points, AR capabilities

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Crash Simulator

[App page](https://appshunter.io/ios/app/space-crash-simulator/id6742357679)

Experience realistic planetary collisions with a powerful physics engine. Customize your own cosmic events by adjusting particle count, velocity, and accuracy, or jump straight into high-energy impacts. This app offers a detailed, physics-based simulation for educational or entertainment purposes.

**Highlights:** Smoothed Particle Hydrodynamics (SPH) simulation, Real-time planetary collisions, Customizable simulation parameters, Setup Mode for scenario creation, Adjustable particle count and accuracy, Physics-based detailed simulation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |

**What reviewers like**

- 👍 Great game
- 🚀 Awesome graphics
- 💡 Interesting simulation features
- 🎉 Fun and enjoyable

**What reviewers complain about**

- 🐛 Occasional performance issues
- 💰 Too many ads

**Reported bugs**

- Collision trails not clearing properly
- Protoplanetary disc mode not working as expected

**Requested features**

- Add more celestial objects (black holes, stars, etc.)
- Allow for custom textures and planet/atmosphere customization
- Improve performance and optimization
- Add more graphic options and settings
- Allow for custom rings and moons around planets


## Frequently asked questions

### Is Blockjaw free?

Blockjaw costs $0.99, with no in-app purchases.

### Is Space Crash Simulator free?

Space Crash Simulator is free to download, with in-app purchases available.

### Which has better reviews, Blockjaw or Space Crash Simulator?

Blockjaw is rated higher. Blockjaw averages 5.0 out of 5 from 2 ratings, while Space Crash Simulator averages 4.5 from 608 ratings.

### Do Blockjaw or Space Crash Simulator have ads?

Space Crash Simulator shows ads; Blockjaw does not.

### Which is updated more often, Blockjaw or Space Crash Simulator?

Blockjaw ships an update every 6 weeks, and Space Crash Simulator every 5 days. Most recently, Blockjaw was updated on October 14, 2026 and Space Crash Simulator on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*